SPIE Backs SMART Jobs Bill

A new bill that would enable foreign students educated in US graduate programs to stay in the country and work has gained the support of SPIE. The Sustaining our Most Advanced Researchers and Technology (SMART) Jobs Act of 2012 would create a visa category for students in science, technology,...Read full article

Aspheric surfaces are powerful tools that combine the optical corrections of multiple lenses into a single element (Figure 1) and affect performance in ways that spherical optics cannot. For example,...